Modela | IRR | 95% CI | P-value |
---|---|---|---|
Model A with level change | |||
Baseline trend | 1.002 | 1.001 to 1.002 | 0.022 |
Level change after intervention | 0.949 | 0.907 to 0.992 | <0.001 |
Model B with trend changeb | |||
Baseline trend | 1.002 | 1.001 to 1.002 | <0.001 |
Trend change after intervention | 0.996 | 0.993 to 0.998 | <0.001 |
Model C, full segmented regression | |||
Baseline trend before intervention | 1.002 | 1.001 to 1.002 | <0.001 |
Level change after intervention | 1.002 | 0.939 to 1.069 | 0.060 |
Trend change after intervention | 0.996 | 0.992 to 0.999 | 0.025 |